Substances like liquid mercury are very , but substances like rubber are very

electrons form the atoms f one material may move to the atoms of the other material. The movement of electrons from one atom to another changes the charge of the atoms. When an atom loses electrons, it is left with more protons than electrons, so it then has a positive charge. when an atom gains electrons, it has more electrons than protons so its charge is negative.

Explanation:

i believe that it is a exoplanet

im not exactly sure but i think its b!